Shuffling and shifting arrays

public class ProcessingArraysRandomShuffling {

    public static void main(String[] args) {
        // shuffling
        int[] array = {3, 9, 8, 6, 7, 5, 1};

            for (int i=0; i<array.length; i++){
                int j=(int)(Math.random() * array.length);
                int temp= array[i];
                array[i]=array[j];
                array[j]= temp;
            }


            // shifting elements
            int[] array2 = {3, 9, 8, 6, 7, 5, 1};
            System.out.println("Before the shift");
            for (int e: array2)
                System.out.print(e+" ");
                System.out.println();
            int temp = array2[0];
            for (int i=0; i<array2.length-1;i++)
                array2[i]=array2[i+1];

            array2[array2.length-1]= temp;

            System.out.println("after the shift ");
            for (int e : array2)
                System.out.print(e+" ");
            }

}